Welded bolster center brace



Sept. 25, 1951 C, M, WR|GHT ETAL 2,569,211

wELDED BOLSTER CENTER BRACE Filed Aug. 17, 1945 2 sheets-sheet 1 EN' l Sept- 25, 1951 c. M. WRIGHT ET Al. 2,569,211

WELDED BOLSTER CENTER BRACE Filed Aug. 17, 1945 2 Sheets-Sheet 2 F7@ 'ez .j J 5137 W? 3257169 16 Wm Z50/01165171 ll/ya Patented Sept. 25, 1951 *STATES OFF-ICE WELDJED HOLSTER CENTER'BRA-CE Charles1lVLl Wright-and Louis G.lMi1ler,:Bethle 4diem, Pa., `assignors to .BethlehemvSteel `Company, Ta corporation of Pennsylvania Application August'l', 1945, Serial No. 611,044

, 1 1,2 v uprbolsteraeenter Ybrace of isuch.` form. as to.` permitrf the side rmembers -tocbe` secured fto -the firespective;l halveszof thegcenter. sill @prior .to-f their assembly :gas: a unit Tand then .inserting a 1 sepa.-

ttl-1e fmannerifoffassembling-the sameand more 5 Uratelockingffnrien'tdoer betweenthesidejmembers 'especially tof cen-terl'braces .".applied` vto ai A. A.: R. `1standard center-"car "sill'vwhich comprisesl a :pair fof zbars-"dispose'dWiththeir'webs vertically with 11thetopanges vWhichcfare longer x and thinner than; the bottomfangesf-extending inwardly Kwith *10 -together.

to facilitate the 'welding" of the side-` members together intolV a: singieufunit, waitery the twofparts Tof the centen sll'have-beenassembled andvwelded Another obj ectV of our iinvention relates rato lforming-:andl assembling 'a built. up welded center ibrace, consisting-of initiallyfforming i two `fside ir'me'mbers :and fone centralj-'or-.lo.clzing member.

The -side members :of the y bolster center tbrace :purpose heretofore 'lhavefusually been `made'as 15'lare-@thenriveted'ioyua Istationarywlsull machine .rea f complete `lfseparatef .unit and then :riveted :to

' -*:at thejlunctiorrlof thetedgesfof thetop flanges.

to: the zres-pective vhalves of. the center-:sill prior nto Vtheir-wassernblyeasa unit, thenwe1dingsthe --ithe centeresill: together-and- -nallyinsertinat fthe verticalflloadtofthatruckpass .tlflrough`A the `20w-central locking fmember `of the :bolster-center "rivets--- attachingl the ..center brace^ to `the:A xcenter vsll. Itfis;l1therefore,1importantfthat' these rivets bef--wll'driveniand 'thatzthefcenter brace' its` tight iagainst the'Y center sill.

.fiom-oeibetween:A the,L side:v members and' Welding, it tosaid side members..

A further object of our invention relates-to assembling la-:built up Weldedbolster center brace,

'T'The railroads #specifylthat these rivetsf. bef'ma- @.25 whiehf-eonsists im securing the Side -members-iof rtzlfiinery driven. fby afb'11'l1"rivei',erv if #possible infrstead'of'f a'handfriveter. To do f this: requires a sspe'c'al movable rivetercas the armsof: theriveter must operate .between ,'the'webs :of' the `.centerJs'ill Considerable trouble has been-experienced in rrgetting atight ritwv betweenv thezcenterr brace and "ttlfxe: sills fand in figetting tight trivets. The in- Lspectors :inspect fthis''work 'very `carefully and ltinsiston fgoodl workmanship. InV order to avoidq. f ifthisz difficulty and #assure a tight `t :and 1: good f theV lbolsten center. brace ,to ythe-' respectiveihalves yof Y the rcenter sill v and athen f inserting-1.aV central 4locking member :between =.the :side members of '.thez-bolster center` brace:` and afwelding ;-it.to the :tandbetweenithe astiffenersfon thel center.` bracea'qm said side fmembers.

.Other @ob-jects `fof f our invention H will f/a-ppear hereafter.

'I-Iavingw Vthus .egiven a ygeneral description of the objectsof .our inventionfwe A.will now Vin-order to .naaka-the#` same 'morer clear;V refer 4 to. the. an- Vnexed* two if sheets A'of drawings forming apart @off this fspecifcatoniand irl-which .like-characters yof f reference vindicate .like fpaijts.

@Figure lisrzatongplan view of-@a bolster center iconsistingfoftwofsidemembersiarid onecenter 013140fbracewitlrafportion ofthecentersill and bolster zloekingi'-memb'en :The fsdemembers of` `the center' "braceare rivfff-eted to-theiseparateZ-bar members'of the `.center 4iha'lveseofthe. center #sill aresw'eldedfitogether "at the junction of their top anges.

#After the-edges-sof. the top angesziof; the Zbars iorming theacenterxsill are Weldedi togetherv the v. ffcentelfloeking rrnemberrof the1bolster Acenter brace fis'insertedfand weldedtol the sidemembers. :This

clocks the: two side members together: :andi `forms f fad-J' acent thereto -Vindicated in vdotted linesfandz in whichit'fis-f showfnf. attached to the centepsillrby fineansjoirivets.

Fig. 2 is :a top plan View of onefsidportion of f `the -bolstercenter .fbraee` shown-in Fig.; 1f with one )fihalfzof .a portion4 1.of r thefcenterffsillindicatedin riotterzllines.l

-rFig.:3 isran innersidefelevatiorrof one-side of :,the: bolsterftcenter -brace` shownwattacheds-toyone 59 fsidefoflthef center .sillxbyz means cfr rivetsshown a rin full dines.

` .'-Eig.. is atopf plan yiewof the lockingmember. Eig.. sta/vertical1 longitudinal;- section-:taken 'Inwour-arrangementweffhavefdesigned,1 abuilt 55' f fisazbOttQmplan.viewof the-'holsterzcenter brace shown in Figures 1 to 7, with a portion of the center sill adjacent thereto.

Fig. 7 is a detail vertical section taken on the line 1 1 of Fig. 1.

Referring now to the various characters of reference on the drawings, the numeral I indicates the center sill of the car which comprises a pair of Z-bars 2 'disposed with their webs 3 vertically'and the top flanges 4, which are longer and thinner than the bottom flanges 5, extending in- 4 braced within the scope of our invention, or as pointed out in the claims.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

1. In a railway car underframe including a center sill formed of a pair of rolled members of Z-section disposed with their Webs vertically and wardly with their end edges welded together'as at 6 thereby forming an inverted .U-shaped center sill with outwardly extending flanges.

In constructing this bolster center brace it is initially made in three pieces in separate jigs and consists of two side members 1 and I8 and a central locking member 9.

The two side members I and 8 are of similar construction but rights and lefts, each having a side wall portion I of substantially channel shape with rivet holes II for receiving rivets I2 for attaching the side members to the webs 3 of the Z-bars 2 and an inwardly extending top flange I3 of uniform width having rivet holes I4, for receiving rivets I for attaching it to the top flanges 4 of the Z-bars 2, and is further provided with portion with an arc shaped recess I'I formed in the edge in line with a portion of the king pin:Y

pocket. At an intermediate point the side members I and 8 are provided with spaced vertical @transversely extending front and back web plates I8 and I9 respectively which have their edges Awelded to the side wall portions I0 and the top and bottom flanges I3 and IIB. A back stop 20 for engaging the rear follower of a draft rigging is welded to each of the forward ends of the side members 1 and 8 and these back stops are further reinforced by means of bracing ribs 2| which connect back stops and the front web plates I8 and are welded thereto and to the side wall portions I0. Y

As shown more clearly in Figs. 2 and 3 the side members 1 and 8 are flrst riveted to each half of the center sill then the edges of the top flanges 4 are welded together as at 6, the locking member 9 is then inserted between the side members and "the ends welded as at 22 to the inner edges of the front and back web plates I8 and I9.

This locking member 9 is formed of a plate 23 disposed vertically and extending longitudinally between the side members 1 and '8 of the bolster center brace having a vertically extending central semi-cylindrical recess 24. A shorter plate 25 has its ends welded as at 26 to the intermediate portion of the plate 23 and is provided with a central semi-cylindrical recess 2'I which is complementary with the recess'r24 and adapted to form a king pin pocket 28. Theedge of the locking member 9 and the central portions of the bottom flanges I6 are then welded together as at 29 and around the lower end of the king pin Y l pocket as at 30.

' As illustrated and described our car bolster center brace is'applied to an A. A. R. standard center sill made of a pair of Z-bars, but we do not limit ourselves to Vthis particular type as it could be applied to a center sill formed of a pair of channels or other shaped bars equally as well. Although we have shown and described our invention in considerable detail, we do not wish it to be limited to the exact construction shown and described, but may use-such substitutions,

modifications or equivalents thereof, as are emthe top flanges extending inwardly and their abutting edges welded together to form a center sill of inverted U-section with outwardly extending bottom flanges, a bolster for the car underframe, a bolster center brace between the webs of the Z-section, comprising side members each of substantially channel shape having a side wall and top and bottom flanges, said bottom flange at its central portion having a greater width than the top flange and formed with a recess, a pair of spaced transversely extending web plates welded to each of the channel shaped side members, a locking member comprising a plate structure having its ends Welded to the inner edges of the spaced transversely extending web plates and the bottom edges of the locking member to the inner edges of the bottom flanges of the side member, a king pin pocket formed centrally in the locking member registering with the recess formed in the edges of the bottom flanges of the side members, and a welded connection between the edges of the recesses and locking member.

2. A center brace for bolster adapted to be secured between center sill members, comprising a pair of substantially channel shaped side members, each adapted to form a side wall having means for securing them to the center sill members and top and bottom inwardly extending flanges, said bottom flange of each side member having a greater width than the top flange and formed with a central arc shaped recess, spaced front land back transversely extending web plates having a welded connection with each side wall and top and bottom flanges, a back stop welded to the forward end of each of the channel shaped members, bracing ribs connecting the back stop with the front web plate, a locking member provided centrally with a king pin pocket inserted between the side members of the bolster center brace having a welded connection with the inner edges of the web plates and the arc shaped recesses and inner edges of the bottom flanges of the side members.

3. A bolster center brace, comprising a pair of side members each of substantially channel shape having a side wall and top and bottom inwardly extending flanges disposed adjacent to each other in spaced relation, said bottom flanges at the central portion having a greater width than the top flanges, a pair of spaced transversely extending web plates welded to each of the side walls and top and bottom flanges of each of the channel shaped side members with their inner ends v in spaced relation to each other, and a locking the-side walls andthe top and bottern flanges with f V#'"tl'leir inner edges spacedapart ffromeacl'i-"other, f and a lockingmember provided centrallylwith a kingpin pocket inserted betweenf'thei inner-ends 1 cfi'the 'transversely extending' side members of -"tiondvith the inner edges of the `web`plates'fand the arcshaped recesses andtheinner edges'o'fthe bottoni ilanges of the side'members.

55A bolster center brace, comprising apair of having a side wall and top and bottom inwardly extending flanges disposed adjacent to each other in spaced-relationfsaid bottom ilanges at the central portion having a greater Width than the l of: spaced transversely.' extending-web 'plates welded to each of the side wallsand top and bottom flanges of each of the channel shaped side members with'ftheirinnerends' in spaced relation to each other, a locking. member comprising? a. plate structure having 'its ends mountedbetween the transversely extending web .plates and "'weld'edtheretc 'and' the bottom edges ofLIthelock- Ling member to the inner"edges of fthe'bottom formed centrallyin thelo'cking member'regis- ,tering with the recesses'v formed in the edges of the bottom'ilanges of' the side" members, and a welded connection between the edges of the recesses and the .locking member.

6. A center brace for a bolster adapted to be secured between the center sill members, comprising a pair of substantially channel shaped side members, each adapted to form a side wall having means for securing them to the center sill members and having top and bottom inwardly extending flanges disposed adjacent to each other, said bottom flange of each side member having a greater width than the top anges with their inner edges spaced apart from each other and each formed with a central arc-shaped recess, spaced front and back transversely extending web plates having a welded connection with each of the side walls and the top and bottom flanges with their inner edges spaced apart from each other, a back stop welded to the forward end of each of the channel shaped members, bracing ribs connecting the back stop with the front web plate, a locking member provided centrally with a king pin pocket inserted between the inner ends of the transversely extending side members of the bolster center brace having a welded connection with the inner edges of web plates and the are shaped recesses and the inner edges of the bottom flanges of the side members.

'7. In a railway car underframe having a pair of rolled members of Z-section disposed with their webs vertically and their top flanges extending inwardly and adapted to be welded along abutting edges to form a center sill of inverted U-shape -thebolstencenter brace; having afwelded connec-Ll side members eachfof substantially chan-'nel Lshape? top ilanges and each formed with -a recess, a pair?? 'flanges of the sideN members, aking: pin pocket iofhaving al-greater width than the top-'llangesv and formed with a" recessl spaced transverselyiextend- "fir'1g' `webplates'havingtheir `edges welded to leach *fof '-the-ifside -walls and flanges-of the channel shapedside members, a locking member-comprisingawverticallyfdisposedplate structure extend- 'i ng' long'itudinally'i'between--theL channel-shaped ide-members having'its'ends and bottom "edge welded rvto the inner edges of rthe spaced trans- '--'=verselyextending web'plates and the bottom edges 'fof` the "locking member `vte the inner edges-f0f vthe "'bottcmilanges of the'side members; a king'fpin A*pocket formed centrally in thelockingmernber i Iregistering with'I the 1vrecesses formed in the edges 'r ofthe bottom flanges of 'the side memberstand a'vv"elded connection v-between-the edges of the '-'recesses andthelocking member. Y

*8L Infa railway car underfr'ame having4 a' pair f bf'spacedcenter v'sillmembers each f having averl tical web with outwardly extending bottom flanges v and 'inwardly extending top ilanges ladapted to be welded together at their inner edges tcl-form a 1Hcenter sill; a bolster'bracef'for thebolster'between the center sill members, 'said bolster'center brace ficomprising apair of side members each of vsub- `-istantially channel shape having a sidefwall'with "'lt'op and bottom inwardly extending'flangesgfsaid bottom flanges havingV a greater-width 'than the "topfanges, vspaced transversely extendingV web j plates weldedto each of `the channel shaped side fmembers, means for securing Athe channel shaped [side members tothe webs of the center sill memv'"-bersvvith the' inner 'ends 'of Athe "bottom nariges and tthe 'inner ends' of VVthe transverselyf 'extending plates in spaced relation to each other, and a locking member longitudinally disposed between the channel shaped side member comprising a plate structure having its ends welded to the inner edges of the spaced transversely extending web plates and the bottom edges of the locking member welded to the inner edges of the bottom flanges of the side members.

9. In a railway car underframe having a pair of spaced center sill members each having a vertical web with outwardly extending bottom flanges and inwardly extending top flanges adapted to be secured together along their abutting edges to form a car sill, a bolster for the car underframe, a center brace for the bolster between the center sill members, comprising side members each of substantially channel shape having a side wall with top and bottom inwardly extending ilanges, said bottom flanges at the central portion having a greater width than the top ilanges and each formed with a recess, a pair of spaced transversely extending web plates welded to each of the channel shaped side members and extending inwardly the width of the bottom ilange, means for securing the channel shaped side members to the webs of the center sill members with their inner edges in spaced relation to each other, a locking member comprising a plate structure disposed longitudinally between the channel shaped side members having its ends Welded to the inner edges of the spaced transversely extending web 75 plates and the bottom edges of the locking mem- -aseaaii ber welded vto the inner edges of 'the bottom flanges of the side members, a king pin pocket `formed centrally in the locking member registering with the recesses formed in the edges of the bottom flanges of the side members, and a welded connection between the edges of the recesses and the locking member.

10. In a railway car underframe including a pair of rolled members of Z-section disposed with their webs vertically and their top flanges extending inwardly and their abutting edges welded together to form a center sill of inverted U-section Vwith outwardly extending bottom flanges, a bolster for the car underframe, a bolster center brace -between the webs of the Z-sections, comprising a pair of side members each of substantially channel shape having a side wall and top and bottom inwardly extending flanges disposed adjacent to each other in spaced relation, said bottom flanges at the central portion having a greater width than the top flanges, a pair of spaced transversely extending web plates welded to each of the side Walls and top and bottom flanges and extending inwardly the width of the bottom flanges and a locking member provided centrally with a king Din pocket disposed longitudinally between the channel shaped side members of the bolster center brace having its ends welded to the inner edges of the transversely extending web plates and the inner edges of the bottom anges of the channel shaped side members.

l1. In a railway car underframe having a pair of rolled members of Z-section disposed with their Webs vertically and their top flanges extending inwardly and adapted to be welded along abutting yedges to form a center sill of inverted U-shape section with horizontal flanges at its lower edges, a bolster for the car underframe, a bolster center brace for the bolster between the center sill members, comprising a pair of side members each gof substantially channel shape having a side wall secured to the center sill members respectively with top and bottom inwardly extending ilanges disposed adjacent toeach other in spaced relation, said bottom anges at the central portions having a greater width than the top flanges and each formed with a recess, a pair of spaced transversely extending web plates having their edges welded to each of the side walls and anges of the channel shaped side members, a locking member comprising a vertically disposed plate structure extending longitudinally between the channel shaped side members having its ends welded to the inner edges of the spaced transversely extending Web plates and the bottom edges of the locking member welded to the inner edges of the bottom flanges of the side members, a vertically extending semi-cylindrical recess formed in the central portion of the locking member, a shorter plate'than the locking member welded to the central portion of the locking member having a vertically extending semi-cylindrical recess formed therein ycomplementary with the recess in the locking member to form a king pin pocket registering with the recesses formed in the edges of the bottom flanges of the side members, and a welded connection between the edges of the recesses and the locking member.

CHARLES M. WRIGHT. LOUIS G. NIILLER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

